Patents-Review.com
ClassID:

219827 ⎘

H03F2203/45044 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers One or more switches are opened or closed to balance the dif amp to reduce the offset of the dif amp

Recent Application in this class:
#1
20250279749
2025-09-04

DATA DRIVING CIRCUIT AND DISPLAY INCLUDING THE SAME

 #2
20240221795
2024-07-04

DATA CONVERTER FOR CANCELLING OFFSET VOLTAGE

 #3
20240128930
2024-04-18

DATA DRIVING CIRCUIT AND DISPLAY INCLUDING THE SAME

 #4
20230155553
2023-05-18

Low power operational amplifier trim offset circuitry

 #5
20210167731
2021-06-03

Low power operational amplifier trim offset circuitry

 #6
20210067114
2021-03-04

Operational amplifier offset trim

 #7
20200184998
2020-06-11

Reducing offset of a differential signal output by a capacitive coupling stage of a hard disk drive preamplifier

 #8
20200174508
2020-06-04

Voltage regulator and power supply

 #9
20200136577
2020-04-30

Operational amplifier offset trim

 #10
20200052655
2020-02-13

Operational amplifier and control method thereof

 #11
20200014348
2020-01-09

Differential amplifier circuit

 #12
20190372681
2019-12-05

Transmitting device and receiving device providing relaxed impedance matching

 #13
20190312551
2019-10-10

Amplifier offset and compensation

 #14
20190243402
2019-08-08

Voltage regulator and power supply

 #15
20190068149
2019-02-28

Programmable gain amplifier

 #16
20180097491
2018-04-05

Amplifier calibration

 #17
20180097490
2018-04-05

Circuit and method for a high common mode rejection amplifier by using a digitally controlled gain trim circuit

 #18
20180091105
2018-03-29

Operation amplifiers with offset cancellation

 #19
20180062588
2018-03-01

FBDDA amplifier and device including the FBDDA amplifier

 #20
20180034430
2018-02-01

Programmable amplifier and method of operating the same

 #21
20180012639
2018-01-11

Sense amplifier

 #22
20170338830
2017-11-23

Amplifier calibration

 #23
20170243622
2017-08-24

Sense amplifier

 #24
20170187335
2017-06-29

Amplifying electronic circuit with reduced start-up time for a signal including quadrature components

 #25
20170115684
2017-04-27

Switched-capacitor bandgap reference circuit using chopping technique

 #26
20160156319
2016-06-02

FBDDA amplifier and device including the FBDDA amplifier

 #27
20160142019
2016-05-19

Amplifying device and offset voltage correction method

 #28
20160126898
2016-05-05

Apparatus and methods for reducing input bias current of an electronic circuit

 #29
20160079926
2016-03-17

Amplifying circuit

 #30
20150357974
2015-12-10

Buffer circuit

 #31
20090312664
2009-12-17

Apparatus and method for obtaining EEG data

 #32
20090289713
2009-11-26

Differential amplifier circuit having offset adjustment circuit

 #33
20090193372
2009-07-30

Design Structure for Improvement of Matching FET Currents Using a Digital to Analog Converter

 #34
20070109043
2007-05-17

Operational amplifier with zero offset

 #35
14872328
2017-02-14

Auxiliary control of system offsets